godot/demos/2d/space_shooter/asteroid.gd

extends Area2D

# Member variables
const SPEED = -200
const Y_RANDOM = 10

var points = 1
var speed_y = 0.0
var destroyed = false


func _fixed_process(delta):
	translate(Vector2(SPEED, speed_y)*delta)


func _ready():
	speed_y = rand_range(-Y_RANDOM, Y_RANDOM)


func destroy():
	if (destroyed):
		return
	destroyed = true
	get_node("anim").play("explode")
	set_fixed_process(false)
	get_node("sfx").play("sound_explode")
	# Accumulate points
	get_node("/root/game_state").points += 1


func is_enemy():
	return not destroyed


func _on_visibility_enter_screen():
	set_fixed_process(true)
	# Make it spin!
	get_node("anim").play("spin")


func _on_visibility_exit_screen():
	queue_free()